<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>百度搜索</title>
  <style>
  .bd-content {
    text-align: center;
    position: relative;
    top: 80px;
  }
  .bd-content .logo {
    width: 270px;
    height: 130px;
    margin: 0 auto;
    background: url(img/bd_logo.png) center no-repeat;
    background-size: 270px 130px;
  }
  .bd-content input {
    /* border: none; */
    outline: none;
    appearance: none;
  }
  .bd-content .bd-input {
    width: 460px;
    height: 30px;
    padding: 0 6px;
    margin-top: 20px;
  }
  </style>
</head>
<body>
  <header>
    <div>
      <a href=""></a>
    </div>
  </header>
  <div class="bd-content">
    <div class="logo"></div>
    <input class="bd-input" type="text" name="" id="">
  </div>
</body>
</html>